Plum wrench 8 sets: 6 * 7 8 * 10 10 * 12 12 * 14 14 * 17 17 * 19 19 * 22 24 * 27
Plum wrench 10 sets: 6 * 7 8 * 10 9 * 11 10 * 12 12 * 14 14 * 17 17 * 19 19 * 22 24 * 27 30 * 32